Amblyanthus chenii (Primulaceae), a New Species and Generic Record from Xizang, China

2021 ◽  
Vol 46 (1) ◽  
pp. 152-161
Author(s):  
Zhuo Zhou ◽  
Yong-jie Guo ◽  
Ji-pei Yue ◽  
Hong-liang Chen ◽  
Yun-hong Tan ◽  
...  

Abstract—Amblyanthus chenii (Primulaceae; Myrsinoideae) is a new species discovered growing in the understory of primeval forests in Medog County, southeast Xizang, China and is described based on morphological evidence. This is the first generic record of Amblyanthus in China. The new species is most morphologically similar to A. multiflorus. Amblyanthus chenii can be easily distinguished from other congeneric species by various morphological differences. A phylogenetic analysis based on nuclear ribosomal ITS and six plastid markers indicated that A. chenii and Amblyanthopsis burmanica form a clade that is nested within the large pantropical genus Ardisia and is sister to Ardisia subgenus Crispardisia. The close relationship among Amblyanthus, Amblyanthopsis, and Ardisia subg. Crispardisia is strongly supported by their shared synapomorphy of crenulate leaves with marginal glands.

Phytotaxa ◽  
2018 ◽  
Vol 350 (1) ◽  
pp. 1
Author(s):  
RUI-HONG WANG ◽  
MAO-QIN XIA ◽  
JIN-BO TAN ◽  
CHUAN CHEN ◽  
XIN-JIE JIN ◽  
...  

A new species, Scrophularia jinii (Scrophulariaceae), from Central China is described and illustrated. This new species was formerly misidentified as S. fargesii, from which it differs in many morphological characters. Moreover, it is distinct with all known Scrophularia species in its unique deeply double serrate leaf margin with 3–7 big teeth on each side. Molecular phylogenetic analysis further supports its species delimitation and suggests a close relationship with several Japanese and North American species.


Phytotaxa ◽  
2020 ◽  
Vol 461 (4) ◽  
pp. 233-242
Author(s):  
XUE-MIN XU ◽  
DAN-HUI LIU ◽  
YI HE ◽  
QUAN-RU LIU

Trigonotis motuoensis, a distinct new species endemic to Xizang, China, is described and illustrated. It can be easily distinguished from all other known congeneric species by the ebracteate inflorescences, broadly spatulate calyx lobes and obliquely trigonous-tetrahedral nutlets that have flat bottom surface and triangular abaxial surfaces. Our molecular phylogenetic analysis based on nrITS confirmed that it belongs to Trigonotis sect. Elongatae. An updated key to the species of Trigonotis from Xizang is also provided.


Phytotaxa ◽  
2019 ◽  
Vol 392 (1) ◽  
pp. 45 ◽  
Author(s):  
ZHUN XU ◽  
NENG WEI ◽  
YING TAN ◽  
SHUAI PENG ◽  
VERONICAH MUTELE NGUMBAU ◽  
...  

Paris lihengiana (Melanthiaceae), a new species from Yunnan Province, China, is described and illustrated based on evidence from morphological characters and molecular phylogeny. It differs from other species of Paris in its pubescent stem, pedicel and abaxial leaf surface, as well as other characters. Molecular phylogenetic analysis of 33 taxa in Paris was conducted based on nuclear ribosomal ITS and six plastid markers. Paris lihengiana is supported as a new species by both morphological characters and molecular data.


Phytotaxa ◽  
2020 ◽  
Vol 443 (2) ◽  
pp. 189-197
Author(s):  
FREDRICK MUNYAO MUTIE ◽  
PENINAH CHEPTOO RONO ◽  
VIVIAN KATHAMBI ◽  
NENG WEI ◽  
PERIS KAMAU ◽  
...  

Peponium elgonense, a new species of Cucurbitaceae from Mount Elgon in Kenya, is described and illustrated here with photographs. This species is similar to P. cienkowskii and P. vogelii, but differs by being monoecious and having a longer ovary. A molecular phylogenetic analysis of Peponium based on ITS and five plastid markers (trnL–F, rpl20–rps12, matK, rbcL, and trnL intron) of four species of Peponium further shows that P. elgonense individuals cluster together supporting the argument to regard it as a separate species.


Phytotaxa ◽  
2017 ◽  
Vol 332 (3) ◽  
pp. 280 ◽  
Author(s):  
MD. IQBAL HOSEN ◽  
TAI-HUI LI

Limacella bangladeshana, a new species of well-known fungal family Amanitaceae from Bangladesh is described and illustrated based on morphology and molecular evidence. The species is mainly recognized by its medium-sized basidiomata, cream-white to off-white or buff-white pileus, the slightly uplifted pileal margin, globose basidiospores measuring 3.5–4 × 3.5–4 µm, an ixo-trichodermal pileipellis, and the common presence of clamp connections. Molecular phylogenetic analysis using sequence of the nuclear ribosomal large subunit (nrLSU) also supports the recognition of the new species in Limacella. This species represents the first generic record of Limacella for Bangladesh. Detailed description, color photos and illustration, and comparison with allied taxa are presented. 


Phytotaxa ◽  
2018 ◽  
Vol 338 (2) ◽  
pp. 209
Author(s):  
XIANGGANG SHI ◽  
WEIXI LI ◽  
HAIDAN WU ◽  
WUXIA GUO ◽  
CHUANGXING YE ◽  
...  

A new species, Camellia psilocarpa (Theaceae), from Guangdong Province, China, is described and illustrated. It is morphologically most similar to C. magnocarpa, from which it differs by having ovate-oblong leaves with apex caudate or long acuminate, bracteoles and sepals 10-12, grayish white velutinous outside, and especially smaller fruit. The morphological evidence shows that the new species is a member of Camellia sect. Camellia. Additionally, a molecular and phylogenetic analysis using two chloroplast DNA markers also gave support to its taxonomic position.


Phytotaxa ◽  
2015 ◽  
Vol 203 (3) ◽  
pp. 245 ◽  
Author(s):  
Ying Zhang ◽  
Xiaoxia He ◽  
Hans-Otto Baral ◽  
Min Qiao ◽  
Michael Weiβ ◽  
...  

O. laevimarginata is here described as a new species, and also its asexual morph could not be assigned to an existing taxon. Anamorphic strains were obtained from three teleomorph specimens which were collected at different sites and dates. The anamorph is characterized by cylindric-ellipsoid to oblong conidia, mainly 1-septate, growing either singly or mostly from 2–10 denticles in a capitate arrangement on the tip of conidiophores. These morphological characters are similar to those of the nematophagous anamorph genus Arthrobotrys, but the present isolates lack the ability to produce any trapping devices when contacting with nematodes. Phylogenetic analysis inferred from ITS rDNA sequences on different groups within Orbilia showed that the isolates of O. laevimarginata clustered together in a clade separate from Orbilia crenatomarginata (= Hyalinia crystallina). The two species are close to O. scolecospora and an undescribed species, which all have a crenulate to dentate apothecial margin composed of solid glassy processes. The group clustered distant from those species identified within the nematode-trapping anamorph genera Arthrobotrys, Dactylellina and Drechslerella, but also distant from the non-predacious anamorph genus Dactylella. By combining morphological and phylogenetic analysis, we conclude that the three isolates belong to a single undescribed holomorph species. The morphological differences among the three isolated anamorphic strains, and phylogenetic divergence of nematode-trapping fungi and related species are discussed.


Author(s):  
Shingo Hosoishi ◽  
Kazuo Ogata

Two distinct new species of the ant genus Crematogaster, C. khmerensis sp. nov. and C. pfeifferi sp. nov., are described from Cambodia and Malaysia, respectively. The two species are unique among Asian Crematogaster in that they have vertically directed propodeal spines, but their systematic positions have not been determined based on morphological characters alone. Molecular phylogenetic analysis of 89 Crematogaster taxon matrices previously published plus C. khmerensis sp. nov., using nuclear genes, reveals that C. khmerensis sp. nov. is nested within the Australo-Asian Crematogaster clade. Morphological assignment of the developed pronotal shoulders implies a close relationship between C. khmerensis sp. nov. and the C. tetracantha-group. Based on molecular and morphological evidence, we erect a new species group, C. khmerensis-group, to contain C. khmerensis sp. nov. and C. pfeifferi sp. nov. Divergence time estimates using MCMCTree shows that the root node of the C. khmerensis sp. nov. terminal is estimated to be of middle Miocene age at 15 million years old. The position of the C. khmerensis-group well supports the Oriental- to Australian-region dispersal history that has been proposed for the Australo-Asian Crematogaster clade.


2021 ◽  
Vol 7 (10) ◽  
pp. 880
Author(s):  
De-Ping Wei ◽  
Dhanushka N. Wanasinghe ◽  
Eleni Gentekaki ◽  
Vinodhini Thiyagaraja ◽  
Saisamorn Lumyong ◽  
...  

Stictidaceae comprises taxa with diverse lifestyles. Many species in this family are drought resistant and important for studying fungal adaptation and evolution. Stictidaceae comprises 32 genera, but many of them have been neglected for decades due to the lack of field collections and molecular data. In this study, we introduce a new species Fitzroyomyces hyaloseptisporus and a new combination Fitzroyomycespandanicola. We also provide additional morphological and molecular data for Ostropomyces pruinosellus and O. thailandicus based on new collections isolated from an unidentified woody dicotyledonous host in Chiang Rai, Thailand. Taxonomic conclusions are made with the aid of morphological evidence and phylogenetic analysis of combined LSU, ITS and mtSSU sequence data. Characteristics such as the shape and septation of ascospores and conidia as well as lifestyles among genera of Stictidaceae are discussed.


Phytotaxa ◽  
2021 ◽  
Vol 480 (2) ◽  
pp. 185-194
Author(s):  
HUA-JIE ZHANG ◽  
DAI-GUI ZHANG ◽  
TAO FENG ◽  
QUN LIU ◽  
JING-YUAN YANG ◽  
...  

Potentilla sunhangii, a new species of Potentilla, from the Jin-hou-ling Mountains, Shen-nong-jia Forest District of Hubei province, China, is described and illustrated. The wild population of the new species is at an elevation of approximately 2930 m and has leaves palmately 3 foliolate. It is morphologically much similar to P. saundersiana, whilst being easily distinguished by its dense array of glands around the plant and green on both surfaces of leaves. Our molecular phylogenetic analysis based on nuclear and chloroplast confirmed the species belongs to Potentilla, in Argentea clade.


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